//------------------------------------------------------------------------------------------------
// The MIT License (MIT)
// 
// Copyright (c) 2019 Crsky
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy of
// this software and associated documentation files (the "Software"), to deal in
// the Software without restriction, including without limitation the rights to
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
// the Software, and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//------------------------------------------------------------------------------------------------

#ifndef ENGINE_H
#define ENGINE_H

//------------------------------------------------------------------------------------------------
// Interface to engine
//------------------------------------------------------------------------------------------------
class IEngine
{
public:
	// Load the game
	virtual bool Load( bool dedicated ) = 0;
	virtual void UnLoad() = 0;

	// Run the engine frame
	virtual void Frame() = 0;

	// Use this to quit or restart the engine
	enum class QuitAction
	{
		Nothing,	// Do nothing
		ToDesktop,	// Quit to desktop
		Restart		// Restart the engine
	};
	virtual QuitAction GetQuitAction() = 0;
	virtual void SetQuitAction( QuitAction action ) = 0;
};

//------------------------------------------------------------------------------------------------
// Returns the singleton of the engine
//------------------------------------------------------------------------------------------------
IEngine * Engine();

#endif
